Saw-handle.



PATBNTBD JUNE 21, 1904'.

c. W. BYHAM. SAW HANDLE AFPLIOATION FLED PEB. 3, 1904.

N0 MODEL I Q mlm W ITV-ESS UNrTED STATESI Patented June 21, 1904.

PATENT' @erica SAW-HANDLE.

SPECIFICATION forming; part of Letters Patent No. 763,257, dated J' une21, 1904. i Application filed February 3, 1904. Serial No. 191,850. (Nomodel.)

To nl?, whom, t m1/y con/007177,:

Be it known that I, CHARLES 1V. BYHAM, a citizen of the United States,residing at Kane, in the county of McKean and State of Penn- Sylvania,`have invented certain new and useful Improvements in Saw-Handles; and ldo declare the following to be a full, clear, and eX- act description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to new and useful improvements in saw-handlesadapted for use in connection with crosscut-saws; and the aim of thepresent invention is to generally improve upon and render more eliicientthe handle upon which I have been granted Letters Patent in the UnitedStates No. 624,292.

More specifically, the invention consists in a saw-handle adapted to beadjustablyheld to saws and in the provision of a hollow shank portionadapted to receive an operating-handle and so constructed that by oneturn of the thumb-screw, having right and left threads, the shankportion, which is hollow and split, is adapted to clamp or release theoperatinghandle;

rlhe invention consists, further, in various details ot' constructionand in combinations and arrangements of parts, which will be hereinafter more fully described and then specifically defined in theappended claim.

My invention is illustrated in the accompanying drawings, in which-4Figure l is a side elevation of my improved saw-handle shown as appliedto a saw. Fig. 2 is a vertical sectional view through the apparatuswhich is adapted to beheld to the saw. Fig. 3 is a cross-sectional viewthrough the saw and the handle apparatus. Fig. 4 is an edge view of thehollow cylindrical split shank portion adapted to hold anoperating-handle. Fig'. 5 is a cross-sectional view through the detailshown in Fig. 4, and Fig. 6 is an enlarged perspective view of a detailof the apparatus.

Reference now being' had to the details of the drawings by letter, Adesignates one end of a saw having apertures A therein, and B designatesthe operating-handle-holding frame, comprising a right-angled portionwhich is grooved to receive the upper edge of the saw and also. has agroove extending at right anglos to the length of the saw in thedownwardlyprojecting portion of the frame to receive the end or' thesaw. The portion of said frame B which lits over the rear edge of thesaw is longitudinally slotted, as at C, and the opposite parallelmarginal edges of the flanged portion about said opening C is providedwith serrations or teeth D, and E designates a split bolt, the two armsof which have apertures C', adapted to receive a fastening-bolt F, whichboltF has a head F and has its inner end G somewhat enlarged in order toabut against the shoulder H, which is formed about the margin of one or'said apertures in an arm of the bolt E to prevent said bolt fromseparating from the arm of the split bolt, which holds the same. rlheregistering aperture, which is in the other arm, is of suflieientdiameter to allow the enlarged inner end of said bolt to pass throughthe same when it is desired to fasten the bolt to the saw. The object ofhaving the enlarged inner end of said bolt is in order to hold thelatter to the arm after being detached from the saw. The two arms or'said bolt E pass up through said elongated aperture C, and a winged nutK is mounted upon the threaded end of said bolt.

N designates a rectangular-shaped washer having oppositely disposedserrations O, which are designed to rest in opposite notches D, and atthe ends of' said washer are the rectangular-outlined lugs orprojections Q, which are of a length equal tothe width of the aperture Cand adapted to guide the washer in said slot or aperture to hold thewasher with the serrations O in said. notches D.

The shank portion of the handle-holder B has a loop or shell S, which isbent in cylindrieal form, and a winged nutTpasses through registeringapertures in the end of said shell and the narrow portion of the shankportion B,.one end of said thumb-screw being contracted and providedwith left threads designed to engage threads in the aperture in saidshank portion B, while the threads T2 on IOO the enlarged shank portionof the thumbscrew T have right threads engaging similar threads in thewall of the aperture in the end of said shell. A suitable nut S2 ismounted upon the end of the thumb-screw and holds the same in place. Bythe provision of the clamping-shell shown, which is adapted to reeeive awooden handle, the latter may be clamped at any location to its lengthin order to adapt the saw for cutting at different heights or for theconvenience of operators in different positions.

By the provision of the improvements embodied in the present applicationit will be observed that I provide means whereby the slotted bolt issecurely held to the portion of the handle-carrying apparatus which litsover the rear edge of the saw by reason of the serrations` of the washerN engaging oppositelydisposed notches l), and when the thumbscrew l( isturned down, holding said washer securely in place, the handle will besecurely fastened to the saw. By the provision of the bolt F having anenlarged end the latter will be always held to one of the arms of thebolt E, and after thc apparatus has been iitted over the edges of thesaw said bolt F may be pushed through into the registering aperture withthe other arm of the bolt E, and when the thumb-screw K is turned downthe apparatus will be securely held to the saw. 'lhc split cylindricalshank portion, to which the handle is adapted to be fastened, may beclamped to the handle or released therefrom by turning the thumb-screw Tin one direction or the other.

While I have shown a particular construction of apparatus illustratingmy invention it will be understood that I may make alterations incertain details, if found necessary, without departing from the spiritof the invention.

Having thus fully described my invention, what l claim as new, anddesire to secure by Letters Patent, is-w A saw-handle apparatuscomprising a plate having an angled slot adapted to lit over the backand end of the saw, ,and a flexible han dle-engaging portion, said platehaving an elongated slot, the upper edges of the opposite longitudinalwall of said slot having serrations, a split bolt having arms projectingthrough said slot, a retainingmember passing through registeringapertures in said arms and saw, a hollow tapering` washer member throughwhich the threaded shank portion of said bolt passes, one end of saidwasher having oppositely-disposed teeth-engaging serrations in the upperedge of said plate, and lugs at the ends of said washer memberintermediate the side walls of the latter which are adapted to engagethe inner faces of said slotted plate, and a winged nut mounted upon thethreaded portion of the bolt and adapted to bear against said washermember, as set forth.

In testimony whereof I hereunto aflix my signature in presence of twowitnesses.

CHARLES ll". BYHAM.

W'itnesses:

W. M. `Wilnis, JOHN (j. DILLoN.

